Treating ammonia burn and fin rot?

[IUfan]

Been treating a tang in my QT with CP. I'm pretty sure that CP kills the beneficial bacteria, 7 days in the ammonia went crazy! And was uncontrollable, it was a fully cycled QT prior, was doing 5G water changes every day in a 25 gallon tank and nothing would bring the ammonia level down.

Went to day 9 and couldn't do it to the tang anymore, put some carbon in, which worked well as it must have absorbed the meds. Almost immediately ammonia was coming back down, hard to believe but within 24hrs was back down to 0.

Anyone else experience this with CP, used it as NFP instructions detailed.

Now I'm dealing with what I think was ammonia burn and is now infected and is fin rot, tail fin was reddened, and is eroded a lot.

Treated with Nitrofuracin green, which seemed to perk the tang up. Is nitrofuracin green the right meds for this? Or do I need to step it up to combat the fin rot?

 

[ca1ore]

NGP is an excellent med for ammonia burn and many bacterial problems. Cannot think of a better first choice. FWIW, I have not found CP to affect the biofilter myself. Use sure that's what it was. NFP sells quinine sulfate also, I believe, may be that is what you used?

 

[IUfan]

Yeah, sure it was CP. It's recommended dosage seems quite high compared to other sources I've seen.

I was adding 1/2 tspn every day, after a 25% water change. Seem high or about right?

I had live rock in there, as it was an old reef tank that I was braking down to move to another system. Just live rock that had some bubble algae on that I didn't want to transfer yet. Anyway, on day 2 the bristle worms that fell off the rock was crazy, didn't even reallize There was that many in there! So I'm sure die off probably helped the ammonia rise.

 

[IUfan]

Read a few good post about erythromyacin being quite an effective antibiotic, I have that on hand and also have some Kana Pro.

Is NGP enough to stop the infection in the tangs tail? Or do I need to add a gram positive or negative antibiotic?

 

[ca1ore]

Yeah, sure it was CP. It's recommended dosage seems quite high compared to other sources I've seen. I was adding 1/2 tspn every day, after a 25% water change. Seem high or about right?

Every time I have used CP, it has been a single dose only.

 

[IUfan]

That's the instructions said on the packet. 1/4 tspn per 10 gallons, perform a water change before each dosage.

I felt like it was quite high